Granted Patent
Utility
US 5,314,504 · App. 08/069,046
Process for the application of dye fixing agents to polyamide fiber utilizing controlled fixing agent addition
Inventors:
Winfried T. Holfeld, Dale E. Mancuso
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: May 28, 1993
Inventors
Winfried T. Holfeld
Dale E. Mancuso
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.